They’re populists - not conservatives. They broadly favor a mix of traditional values aligned with government spending to uplift the most disadvantaged and left behind sectors of society.
In other words, people left behind by neoliberal globalization policies pursued by both the Left and the Right.
Support for Brexit doesn’t fall neatly along the old traditional left-right ideological divides.
It is a step in the right direction.
What you describe is not really populist, but more like Christian Democrat?
Reality is that neither globalism nor populism (as you describe it) have anything to do with the Constitution here.
I have been telling anyone that will listen to... left / right dynamic is dead... it is now nationalists vs globalists